Apiece of charcoal used for cooking is found at the remains of an ancient campsite. a 0.96-kg sample of carbon from the wood has an activity equal to 5.76 ✕ 10^2 decays per minute. find the age of the charcoal. hint: living material has an activity of 15.0 decays/minute per gram of carbon present. yr

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

Talia is manufacturing rolls of wire for hanging pictures. she needs a material that is so that it can easily be pulled into wire without breaking.